1421428407706 has 8 divisors (see below), whose sum is σ = 2132477504640. Its totient is φ = 710602572828.

The previous prime is 1421428407703. The next prime is 1421428407769. The reversal of 1421428407706 is 6077048241241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1421428407706² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421428407703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55799596 + ... + 55825063.

It is an arithmetic number, because the mean of its divisors is an integer number (266559688080).

Almost surely, 2^{1421428407706} is an apocalyptic number.

1421428407706 is a deficient number, since it is larger than the sum of its proper divisors (711049096934).

1421428407706 is a wasteful number, since it uses less digits than its factorization.

1421428407706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111631028.

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 1421428407706 in words is "one trillion, four hundred twenty-one billion, four hundred twenty-eight million, four hundred seven thousand, seven hundred six".